The crew of the USS Enterprise observed a transwarp conduit in use in 2369, while engaging in combat with a rogue Borg vessel. Pursuing the vessel, the Enterprise became caught in the conduit's energy matrix and was briefly pulled inside. Later, upon analyzing the subspace distortion of the conduit, Commander La Forge was able to reproduce the tachyon pulses the Borg used to open the conduit, allowing the Enterprise to pursue the Borg to the planet which they were using as a base, sixty-five light years away. (TNG: "Descent")

A year later, Kathryn Janeway, Voyager's captain, mounted a mission to steal a transwarp coil from a Borg sphere, in an attempt to return to the Alpha Quadrant. The mission was successful, but the Voyager crew was forced to install the coil in the Delta Flyer in order to travel to Unimatrix 01 to rescue Seven of Nine. Upon completion of the mission, they returned through the conduit to rendezvous with Voyager, pursued by a Borg ship. As soon as the Flyer arrived at Voyager's coordinates, CommanderChakotay ordered a full spread of photon torpedoes fired at the threshold perimeter of the conduit, destabilizing the matter stream and imploding the conduit for at least a light year. This resulted in the destruction of the Borg vessel upon emerging from transwarp space. Voyager was subsequently able to travel another twenty thousand light years towards the Alpha Quadrant before the transwarp coil gave out, eliminating approximately fifteen years from their journey. (VOY: "Dark Frontier")

Voyager enters a transwarp aperture

In 2378, Voyager discovered a transwarp hub in a nebula, allowing them access to a transwarp aperture less than a light year from Earth. With help from her counterpart from twenty-six years in the future, Captain Janeway was able to outfit Voyager with ablative generators, enabling the ship to withstand attacks from Borg ships guarding the hub. Entering the conduit, Voyager destroyed the interspatial manifolds as it went, causing the hub to collapse. Despite their destruction of the manifolds, Voyager still found themselves pursued by a Borg sphere, which exited near Earth and engaged a fleet of Starfleet vessels. Voyager destroyed the sphere from within using a transphasic torpedo, an advanced weapons technology acquired from Janeway's counterpart. (VOY: "Endgame")

In the William Shatner novel The Return, it was stated that Starfleet had attempted to access the transwarp conduits after their confrontation with Lore's Borg, but had found it impossible to re-open the conduits using the tachyon pulses that had opened it previously, suggesting that the conduits had adapted like the Borg themselves.

According to the Star Trek Online video game, the Federation established the first links of its own system of transwarp conduits in 2399, and by 2409 would link the Sol system to key starbases in and around Federation territory. The conduits were created based on data gathered by the USS Voyager from their encounters with the Borg.

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